This asymmetric shawl can be made from any solid-colored or long-gradient yarn. I chose Yarnart Rosegarden 100% cotton yarn, color 324. Yarnart Flowers yarn is also a perfect choice, but you can make it from 3 matching (or contrasting) colors of Flowers Unicolor as well. For these, I recommend a crochet hook size 3 - 3.25, max 3.5.